Mylo, you're on the right track. The char (brookies, arctic, dolly varden, etc.) are all in the Salvelinus family. The Pacific salmon and trout (rainbow/steelhead plus the five Pacific salmon) are Oncorchyncus (and I'm sure I've spelled that wrong. that's why everyone takes the easy way out and abbreviates it to o.mykiss.). Your Atlantic salmon and European brown trout are Salmo.